本(ben)發(fa)明涉及(ji)照明領域(yu)，特(te)別涉及(ji)一種LED照明燈(deng)恒(heng)流電路。

背景技術：

當LED燈在較小(xiao)的(de)(de)(de)正(zheng)向(xiang)(xiang)(xiang)電(dian)壓(ya)驅動時，LED工作在死區(qu)電(dian)壓(ya)，幾乎(hu)不(bu)(bu)產生正(zheng)向(xiang)(xiang)(xiang)電(dian)流(liu)，此時LED不(bu)(bu)能發(fa)光(guang)。隨(sui)(sui)著(zhu)(zhu)正(zheng)向(xiang)(xiang)(xiang)電(dian)壓(ya)的(de)(de)(de)增(zeng)大，LED燈的(de)(de)(de)伏安特曲(qu)線進(jin)入拐點，其正(zheng)向(xiang)(xiang)(xiang)電(dian)流(liu)增(zeng)大，LED發(fa)光(guang)。然而隨(sui)(sui)著(zhu)(zhu)正(zheng)向(xiang)(xiang)(xiang)電(dian)壓(ya)的(de)(de)(de)進(jin)一(yi)步(bu)(bu)增(zeng)大，進(jin)入拐點區(qu)的(de)(de)(de)LED的(de)(de)(de)正(zheng)向(xiang)(xiang)(xiang)電(dian)流(liu)會(hui)隨(sui)(sui)著(zhu)(zhu)電(dian)壓(ya)的(de)(de)(de)增(zeng)壓(ya)而呈指數增(zeng)大。在LED的(de)(de)(de)發(fa)光(guang)過程中，其本身溫度也(ye)會(hui)上升(sheng)(sheng)，溫度上升(sheng)(sheng)使(shi)(shi)得(de)PN結的(de)(de)(de)正(zheng)向(xiang)(xiang)(xiang)電(dian)壓(ya)下(xia)降，從而使(shi)(shi)得(de)電(dian)流(liu)進(jin)一(yi)步(bu)(bu)增(zeng)大，電(dian)流(liu)增(zeng)大后又使(shi)(shi)得(de)溫度進(jin)一(yi)步(bu)(bu)升(sheng)(sheng)高，造成惡(e)性循環，使(shi)(shi)得(de)LED燈燒毀(hui)。現有(you)的(de)(de)(de)LED照明電(dian)路(lu)沒有(you)電(dian)路(lu)保護功能，造成使(shi)(shi)用不(bu)(bu)安全。

技術實現要素：

本發明要(yao)解決的技術問題在于，針對(dui)現有(you)技術的上述(shu)缺陷，提供(gong)一種具有(you)電(dian)路保(bao)護功能(neng)、使用較為安全的LED照明燈恒流電(dian)路。

本發明(ming)解決其(qi)技(ji)(ji)術問題(ti)所(suo)(suo)(suo)(suo)(suo)采用的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)技(ji)(ji)術方案是(shi)：構造一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)種(zhong)LED照明(ming)燈恒流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路，包括第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)五(wu)(wu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)六(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)七電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)八電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)九(jiu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)二(er)(er)(er)(er)(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)三(san)(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)五(wu)(wu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)六(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)、集(ji)(ji)成(cheng)穩(wen)壓(ya)器(qi)(qi)(qi)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)二(er)(er)(er)(er)(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)二(er)(er)(er)(er)(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)二(er)(er)(er)(er)(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)和(he)LED，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)二(er)(er)(er)(er)(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)陰極(ji)(ji)(ji)分別(bie)(bie)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)(zheng)極(ji)(ji)(ji)、第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)(zheng)極(ji)(ji)(ji)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)(bie)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)負(fu)極(ji)(ji)(ji)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)八電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)負(fu)極(ji)(ji)(ji)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)并接(jie)(jie)(jie)(jie)(jie)地(di)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)(bie)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)反相輸(shu)入(ru)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)接(jie)(jie)(jie)(jie)(jie)地(di)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)反相輸(shu)入(ru)端(duan)(duan)(duan)(duan)(duan)(duan)還(huan)分別(bie)(bie)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)均與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)出(chu)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)出(chu)端(duan)(duan)(duan)(duan)(duan)(duan)還(huan)通(tong)過(guo)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)二(er)(er)(er)(er)(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)二(er)(er)(er)(er)(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)陰極(ji)(ji)(ji)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)四(si)(si)引腳(jiao)通(tong)過(guo)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)三(san)(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)接(jie)(jie)(jie)(jie)(jie)地(di)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)同向輸(shu)入(ru)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)(bie)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)集(ji)(ji)成(cheng)穩(wen)壓(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)控制端(duan)(duan)(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)九(jiu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)集(ji)(ji)成(cheng)穩(wen)壓(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)負(fu)極(ji)(ji)(ji)通(tong)過(guo)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)五(wu)(wu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)集(ji)(ji)成(cheng)穩(wen)壓(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)(zheng)極(ji)(ji)(ji)接(jie)(jie)(jie)(jie)(jie)地(di)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)六(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)LED并聯，并聯的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)通(tong)過(guo)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)七電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，并聯的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)(bie)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)二(er)(er)(er)(er)(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)陽極(ji)(ji)(ji)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)二(er)(er)(er)(er)(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)陽極(ji)(ji)(ji)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)同向輸(shu)入(ru)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)(bie)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)八電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)九(jiu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)反相輸(shu)入(ru)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)(bie)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)五(wu)(wu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)六(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)六(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)五(wu)(wu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)十(shi)(shi)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)(ling)一(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)均與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)出(chu)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)(er)(er)(er)(er)運(yun)(yun)算(suan)(suan)(suan)放(fang)(fang)(fang)大(da)(da)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)出(chu)端(duan)(duan)(duan)(duan)(duan)(duan)與(yu)(yu)(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)(di)三(san)(san)二(er)(er)(er)(er)(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)陰極(ji)(ji)(ji)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)(jie)。

在本發明(ming)所(suo)述(shu)的(de)(de)LED照明(ming)燈恒流電(dian)(dian)路中(zhong)，還(huan)包括(kuo)第(di)(di)(di)十(shi)(shi)四電(dian)(dian)阻(zu)(zu)和(he)第(di)(di)(di)十(shi)(shi)五(wu)電(dian)(dian)阻(zu)(zu)，所(suo)述(shu)第(di)(di)(di)十(shi)(shi)四電(dian)(dian)阻(zu)(zu)的(de)(de)一端(duan)(duan)與所(suo)述(shu)第(di)(di)(di)一電(dian)(dian)容(rong)的(de)(de)正極(ji)連(lian)接(jie)，所(suo)述(shu)第(di)(di)(di)十(shi)(shi)四電(dian)(dian)阻(zu)(zu)的(de)(de)另(ling)一端(duan)(duan)分(fen)別(bie)與所(suo)述(shu)第(di)(di)(di)二電(dian)(dian)容(rong)的(de)(de)正極(ji)和(he)第(di)(di)(di)十(shi)(shi)五(wu)電(dian)(dian)阻(zu)(zu)的(de)(de)一端(duan)(duan)連(lian)接(jie)，所(suo)述(shu)第(di)(di)(di)十(shi)(shi)五(wu)電(dian)(dian)阻(zu)(zu)的(de)(de)另(ling)一端(duan)(duan)與所(suo)述(shu)第(di)(di)(di)二電(dian)(dian)阻(zu)(zu)的(de)(de)一端(duan)(duan)連(lian)接(jie)。

在本發(fa)明所(suo)述(shu)(shu)(shu)(shu)的LED照明燈恒流電路中(zhong)，還包括第(di)十六電阻(zu)，所(suo)述(shu)(shu)(shu)(shu)第(di)十六電阻(zu)的一(yi)端與(yu)所(suo)述(shu)(shu)(shu)(shu)第(di)一(yi)運(yun)算放(fang)大器(qi)的反相(xiang)輸入端連接，所(suo)述(shu)(shu)(shu)(shu)第(di)十六電阻(zu)的另一(yi)端與(yu)所(suo)述(shu)(shu)(shu)(shu)第(di)二電阻(zu)的另一(yi)端連接。

在本發(fa)明(ming)所(suo)(suo)述(shu)的LED照明(ming)燈恒流電(dian)路中，還包括第(di)(di)十(shi)七電(dian)阻和第(di)(di)七電(dian)容，所(suo)(suo)述(shu)第(di)(di)一運算放大器(qi)的同(tong)向輸入端依次通(tong)過(guo)所(suo)(suo)述(shu)第(di)(di)十(shi)七電(dian)阻和第(di)(di)七電(dian)容與所(suo)(suo)述(shu)集成穩壓(ya)器(qi)的控(kong)制端連接(jie)。

在本(ben)發明所(suo)述的(de)LED照明燈(deng)恒流電(dian)(dian)路中，還(huan)包括第十(shi)八(ba)電(dian)(dian)阻，所(suo)述第十(shi)八(ba)電(dian)(dian)阻的(de)一(yi)端(duan)(duan)接地，所(suo)述第十(shi)八(ba)電(dian)(dian)阻的(de)另一(yi)端(duan)(duan)與所(suo)述第三電(dian)(dian)阻的(de)另一(yi)端(duan)(duan)連接。

在本發明所(suo)(suo)(suo)述的(de)(de)LED照明燈恒流電(dian)路(lu)中，還包括(kuo)第(di)十(shi)九(jiu)電(dian)阻，所(suo)(suo)(suo)述第(di)十(shi)九(jiu)電(dian)阻的(de)(de)一(yi)端(duan)與(yu)所(suo)(suo)(suo)述第(di)三二(er)極管的(de)(de)陰極連(lian)接，所(suo)(suo)(suo)述第(di)十(shi)九(jiu)電(dian)阻的(de)(de)另一(yi)端(duan)與(yu)所(suo)(suo)(suo)述第(di)二(er)運算放大(da)器(qi)的(de)(de)輸(shu)出端(duan)連(lian)接。

實(shi)施本發明的LED照明燈恒流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路，具(ju)有(you)(you)以下有(you)(you)益效果：由于設有(you)(you)第(di)(di)(di)(di)(di)(di)一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)二(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)四電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)五電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)六電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)七電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)八電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)九電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)十(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)十(shi)一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)十(shi)二(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)十(shi)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)(di)(di)(di)(di)一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)二(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)四電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)五電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)六電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)、第(di)(di)(di)(di)(di)(di)一(yi)運算(suan)放(fang)大器、第(di)(di)(di)(di)(di)(di)二(er)運算(suan)放(fang)大器、集(ji)成穩壓器、第(di)(di)(di)(di)(di)(di)一(yi)二(er)極(ji)管(guan)、第(di)(di)(di)(di)(di)(di)二(er)二(er)極(ji)管(guan)、第(di)(di)(di)(di)(di)(di)三(san)二(er)極(ji)管(guan)和LED，第(di)(di)(di)(di)(di)(di)十(shi)二(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)和第(di)(di)(di)(di)(di)(di)十(shi)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)均(jun)用于進(jin)行過流保護，因此(ci)其具(ju)有(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路保護功能、使用較為安(an)全。

附圖說明

為了更清楚地(di)說明本發明實施例(li)或現有(you)技(ji)(ji)(ji)術中的技(ji)(ji)(ji)術方案，下面將對(dui)實施例(li)或現有(you)技(ji)(ji)(ji)術描(miao)述中所需(xu)要使(shi)用的附圖(tu)作簡單地(di)介(jie)紹，顯而(er)易見地(di)，下面描(miao)述中的附圖(tu)僅僅是本發明的一些實施例(li)，對(dui)于本領(ling)域(yu)普通技(ji)(ji)(ji)術人(ren)員(yuan)來講，在不付出創造(zao)性勞動性的前提下，還可以根據(ju)這(zhe)些附圖(tu)獲得其他的附圖(tu)。

圖(tu)1為本發明LED照明燈恒流電(dian)路一個實施例中的電(dian)路原理圖(tu)。

具體實施方式

下(xia)面(mian)將結合本(ben)(ben)(ben)(ben)發(fa)明實(shi)施(shi)(shi)例(li)中(zhong)(zhong)的(de)(de)附圖，對本(ben)(ben)(ben)(ben)發(fa)明實(shi)施(shi)(shi)例(li)中(zhong)(zhong)的(de)(de)技術方(fang)案進行清楚(chu)、完整地描述，顯然，所(suo)描述的(de)(de)實(shi)施(shi)(shi)例(li)僅僅是本(ben)(ben)(ben)(ben)發(fa)明一(yi)部分實(shi)施(shi)(shi)例(li)，而不是全部的(de)(de)實(shi)施(shi)(shi)例(li)。基于(yu)本(ben)(ben)(ben)(ben)發(fa)明中(zhong)(zhong)的(de)(de)實(shi)施(shi)(shi)例(li)，本(ben)(ben)(ben)(ben)領域普通技術人(ren)員(yuan)在沒有(you)做出創造(zao)性勞動前提下(xia)所(suo)獲得的(de)(de)所(suo)有(you)其他實(shi)施(shi)(shi)例(li)，都屬于(yu)本(ben)(ben)(ben)(ben)發(fa)明保護的(de)(de)范(fan)圍。

在本發明(ming)LED照明(ming)燈(deng)恒流(liu)(liu)電(dian)(dian)(dian)路實施(shi)例中，該LED照明(ming)燈(deng)恒流(liu)(liu)電(dian)(dian)(dian)路原(yuan)理圖(tu)如圖(tu)1所示。圖(tu)1中，該LED照明(ming)燈(deng)恒流(liu)(liu)電(dian)(dian)(dian)路包括第(di)(di)(di)一(yi)電(dian)(dian)(dian)阻(zu)R1、第(di)(di)(di)二(er)(er)(er)電(dian)(dian)(dian)阻(zu)R2、第(di)(di)(di)三(san)(san)電(dian)(dian)(dian)阻(zu)R3、第(di)(di)(di)四電(dian)(dian)(dian)阻(zu)R4、第(di)(di)(di)五電(dian)(dian)(dian)阻(zu)R5、第(di)(di)(di)六(liu)電(dian)(dian)(dian)阻(zu)R6、第(di)(di)(di)七電(dian)(dian)(dian)阻(zu)R7、第(di)(di)(di)八電(dian)(dian)(dian)阻(zu)R8、第(di)(di)(di)九電(dian)(dian)(dian)阻(zu)R9、第(di)(di)(di)十(shi)(shi)電(dian)(dian)(dian)阻(zu)R10、第(di)(di)(di)十(shi)(shi)一(yi)電(dian)(dian)(dian)阻(zu)R11、第(di)(di)(di)十(shi)(shi)二(er)(er)(er)電(dian)(dian)(dian)阻(zu)R12、第(di)(di)(di)十(shi)(shi)三(san)(san)電(dian)(dian)(dian)阻(zu)R13、第(di)(di)(di)一(yi)電(dian)(dian)(dian)容(rong)(rong)C1、第(di)(di)(di)二(er)(er)(er)電(dian)(dian)(dian)容(rong)(rong)C2、第(di)(di)(di)三(san)(san)電(dian)(dian)(dian)容(rong)(rong)C3、第(di)(di)(di)四電(dian)(dian)(dian)容(rong)(rong)C4、第(di)(di)(di)五電(dian)(dian)(dian)容(rong)(rong)C5、第(di)(di)(di)六(liu)電(dian)(dian)(dian)容(rong)(rong)C6、第(di)(di)(di)一(yi)運算(suan)放大器U1A、第(di)(di)(di)二(er)(er)(er)運算(suan)放大器U1B、集成穩壓器U2、第(di)(di)(di)一(yi)二(er)(er)(er)極(ji)(ji)管D1、第(di)(di)(di)二(er)(er)(er)二(er)(er)(er)極(ji)(ji)管D2、第(di)(di)(di)三(san)(san)二(er)(er)(er)極(ji)(ji)管D3和LED U3。

其中，第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)二(er)(er)(er)極(ji)管(guan)D1的(de)(de)(de)(de)陰極(ji)分別(bie)與(yu)(yu)(yu)(yu)(yu)(yu)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C1的(de)(de)(de)(de)正極(ji)、第(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C2的(de)(de)(de)(de)正極(ji)和(he)(he)第(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R2的(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接，第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R1的(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)與(yu)(yu)(yu)(yu)(yu)(yu)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C1的(de)(de)(de)(de)負極(ji)和(he)(he)第(di)(di)(di)(di)(di)(di)(di)八電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R8的(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接，第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R1的(de)(de)(de)(de)另(ling)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)與(yu)(yu)(yu)(yu)(yu)(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C2的(de)(de)(de)(de)負極(ji)連(lian)(lian)(lian)接并接地(di)，第(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R2的(de)(de)(de)(de)另(ling)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)與(yu)(yu)(yu)(yu)(yu)(yu)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)運算(suan)(suan)(suan)放(fang)大(da)(da)(da)器(qi)U1A的(de)(de)(de)(de)反相輸(shu)入(ru)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)(he)第(di)(di)(di)(di)(di)(di)(di)三電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R3的(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接，第(di)(di)(di)(di)(di)(di)(di)三電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R3的(de)(de)(de)(de)另(ling)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)接地(di)，第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)運算(suan)(suan)(suan)放(fang)大(da)(da)(da)器(qi)U1A的(de)(de)(de)(de)反相輸(shu)入(ru)端(duan)(duan)(duan)(duan)(duan)(duan)還分別(bie)與(yu)(yu)(yu)(yu)(yu)(yu)第(di)(di)(di)(di)(di)(di)(di)三電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C3的(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)(he)第(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C4的(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接，第(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C4的(de)(de)(de)(de)另(ling)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)與(yu)(yu)(yu)(yu)(yu)(yu)第(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R4的(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接，第(di)(di)(di)(di)(di)(di)(di)三電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C3的(de)(de)(de)(de)另(ling)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)(he)第(di)(di)(di)(di)(di)(di)(di)四(si)(si)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R4的(de)(de)(de)(de)另(ling)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)均與(yu)(yu)(yu)(yu)(yu)(yu)第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)運算(suan)(suan)(suan)放(fang)大(da)(da)(da)器(qi)U1A的(de)(de)(de)(de)輸(shu)出端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接，第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)運算(suan)(suan)(suan)放(fang)大(da)(da)(da)器(qi)U1A的(de)(de)(de)(de)輸(shu)出端(duan)(duan)(duan)(duan)(duan)(duan)還通過(guo)第(di)(di)(di)(di)(di)(di)(di)十(shi)二(er)(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R12與(yu)(yu)(yu)(yu)(yu)(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)(er)(er)二(er)(er)(er)極(ji)管(guan)D2的(de)(de)(de)(de)陰極(ji)連(lian)(lian)(lian)接，第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)運算(suan)(suan)(suan)放(fang)大(da)(da)(da)器(qi)U1A的(de)(de)(de)(de)第(di)(di)(di)(di)(di)(di)(di)四(si)(si)引(yin)腳通過(guo)第(di)(di)(di)(di)(di)(di)(di)十(shi)三電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R13接地(di)，第(di)(di)(di)(di)(di)(di)(di)一(yi)(yi)(yi)(yi)(yi)運算(suan)(suan)(suan)放(fang)大(da)(da)(da)器(qi)R13的(de)(de)(de)(de)同向輸(shu)入(ru)端(duan)(duan)(duan)(duan)(duan)(duan)分別(bie)與(yu)(yu)(yu)(yu)(yu)(yu)集成穩壓器(qi)U2的(de)(de)(de)(de)控制(zhi)端(duan)(duan)(duan)(duan)(duan)(duan)和(he)(he)第(di)(di)(di)(di)(di)(di)(di)九電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)R9的(de)(de)(de)(de)一(yi)(yi)(yi)(yi)(yi)端(duan)(duan)(duan)(duan)(duan)(duan)連(lian)(lian)(lian)接。

集(ji)成(cheng)穩(wen)壓器(qi)U2的(de)(de)(de)負極(ji)(ji)通過(guo)第(di)(di)(di)(di)(di)五電(dian)(dian)(dian)阻(zu)(zu)(zu)R5連(lian)接(jie)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)源VCC，集(ji)成(cheng)穩(wen)壓器(qi)U2的(de)(de)(de)正極(ji)(ji)接(jie)地，第(di)(di)(di)(di)(di)六電(dian)(dian)(dian)阻(zu)(zu)(zu)R6與(yu)LED U3并(bing)聯，并(bing)聯的(de)(de)(de)一(yi)(yi)端(duan)(duan)通過(guo)第(di)(di)(di)(di)(di)七(qi)電(dian)(dian)(dian)阻(zu)(zu)(zu)R7連(lian)接(jie)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)源VCC，并(bing)聯的(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)分(fen)(fen)別(bie)與(yu)第(di)(di)(di)(di)(di)二(er)(er)二(er)(er)極(ji)(ji)管(guan)(guan)D2的(de)(de)(de)陽極(ji)(ji)和第(di)(di)(di)(di)(di)三二(er)(er)極(ji)(ji)管(guan)(guan)D3的(de)(de)(de)陽極(ji)(ji)連(lian)接(jie)，第(di)(di)(di)(di)(di)二(er)(er)運(yun)(yun)算放(fang)大(da)(da)器(qi)U1B的(de)(de)(de)同向(xiang)輸(shu)入端(duan)(duan)分(fen)(fen)別(bie)與(yu)第(di)(di)(di)(di)(di)十(shi)(shi)電(dian)(dian)(dian)阻(zu)(zu)(zu)R10的(de)(de)(de)一(yi)(yi)端(duan)(duan)和第(di)(di)(di)(di)(di)八電(dian)(dian)(dian)阻(zu)(zu)(zu)R8的(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)連(lian)接(jie)，第(di)(di)(di)(di)(di)十(shi)(shi)電(dian)(dian)(dian)阻(zu)(zu)(zu)R10的(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)與(yu)第(di)(di)(di)(di)(di)九電(dian)(dian)(dian)阻(zu)(zu)(zu)R9的(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)連(lian)接(jie)，第(di)(di)(di)(di)(di)二(er)(er)運(yun)(yun)算放(fang)大(da)(da)器(qi)U1B的(de)(de)(de)反相輸(shu)入端(duan)(duan)分(fen)(fen)別(bie)與(yu)第(di)(di)(di)(di)(di)五電(dian)(dian)(dian)容C5的(de)(de)(de)一(yi)(yi)端(duan)(duan)和第(di)(di)(di)(di)(di)六電(dian)(dian)(dian)容C6的(de)(de)(de)一(yi)(yi)端(duan)(duan)連(lian)接(jie)，第(di)(di)(di)(di)(di)六電(dian)(dian)(dian)容C6的(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)與(yu)第(di)(di)(di)(di)(di)十(shi)(shi)一(yi)(yi)電(dian)(dian)(dian)阻(zu)(zu)(zu)R11的(de)(de)(de)一(yi)(yi)端(duan)(duan)連(lian)接(jie)，第(di)(di)(di)(di)(di)五電(dian)(dian)(dian)容C5的(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)和第(di)(di)(di)(di)(di)十(shi)(shi)一(yi)(yi)電(dian)(dian)(dian)阻(zu)(zu)(zu)R11的(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)均與(yu)第(di)(di)(di)(di)(di)二(er)(er)運(yun)(yun)算放(fang)大(da)(da)器(qi)U1B的(de)(de)(de)輸(shu)出端(duan)(duan)連(lian)接(jie)，第(di)(di)(di)(di)(di)二(er)(er)運(yun)(yun)算放(fang)大(da)(da)器(qi)U1B的(de)(de)(de)輸(shu)出端(duan)(duan)與(yu)第(di)(di)(di)(di)(di)三二(er)(er)極(ji)(ji)管(guan)(guan)D3的(de)(de)(de)陰(yin)極(ji)(ji)連(lian)接(jie)。

其中，第(di)十(shi)二(er)電阻(zu)(zu)(zu)R12和(he)第(di)十(shi)三(san)(san)電阻(zu)(zu)(zu)R13均為(wei)限流電阻(zu)(zu)(zu)，第(di)十(shi)二(er)電阻(zu)(zu)(zu)R12用于對第(di)一運(yun)算放大器U1A的(de)(de)輸出端和(he)第(di)二(er)二(er)極管D2之間的(de)(de)支(zhi)(zhi)路(lu)進行過流保護(hu)(hu)，第(di)十(shi)三(san)(san)電阻(zu)(zu)(zu)R13用于對第(di)一運(yun)算放大器的(de)(de)第(di)四引腳所在的(de)(de)支(zhi)(zhi)路(lu)進行過流保護(hu)(hu)，因(yin)此其具(ju)有電路(lu)保護(hu)(hu)功(gong)能(neng)、使用較為(wei)安全(quan)。

本實施(shi)例中，第(di)一(yi)運(yun)算(suan)放(fang)大(da)(da)器(qi)U1A完成(cheng)電(dian)(dian)壓控(kong)(kong)制(zhi)，第(di)二運(yun)算(suan)放(fang)大(da)(da)器(qi)U1B完成(cheng)恒流控(kong)(kong)制(zhi)。第(di)一(yi)運(yun)算(suan)放(fang)大(da)(da)器(qi)U1A將比較后的(de)信號進行(xing)放(fang)大(da)(da)輸(shu)(shu)出(chu)，控(kong)(kong)制(zhi)LED U3上(shang)的(de)電(dian)(dian)流來改(gai)變反(fan)饋量，從而保(bao)(bao)證(zheng)輸(shu)(shu)出(chu)電(dian)(dian)壓穩定。第(di)二運(yun)算(suan)放(fang)大(da)(da)器(qi)U1B同樣(yang)將比較后的(de)信號放(fang)大(da)(da)控(kong)(kong)制(zhi)LED U3上(shang)的(de)電(dian)(dian)流來改(gai)變反(fan)饋量保(bao)(bao)證(zheng)輸(shu)(shu)出(chu)電(dian)(dian)流穩定。第(di)五電(dian)(dian)阻(zu)(zu)(zu)R5和第(di)七電(dian)(dian)阻(zu)(zu)(zu)R7用于限制(zhi)最(zui)大(da)(da)電(dian)(dian)流值，第(di)六(liu)電(dian)(dian)阻(zu)(zu)(zu)R6用于保(bao)(bao)證(zheng)LED U3上(shang)有最(zui)小的(de)電(dian)(dian)流值。第(di)三(san)電(dian)(dian)容C3、第(di)四電(dian)(dian)容C4、第(di)四電(dian)(dian)阻(zu)(zu)(zu)R4、第(di)五電(dian)(dian)容C5、第(di)六(liu)電(dian)(dian)容C6和第(di)十一(yi)電(dian)(dian)阻(zu)(zu)(zu)R11均(jun)構成(cheng)補(bu)償(chang)網絡，用于系統的(de)傳(chuan)遞函(han)數補(bu)償(chang)。

本實施例中(zhong)，該LED照明(ming)燈恒流電(dian)(dian)(dian)路(lu)還包(bao)括第(di)(di)(di)十(shi)四電(dian)(dian)(dian)阻(zu)(zu)R14和第(di)(di)(di)十(shi)五(wu)(wu)電(dian)(dian)(dian)阻(zu)(zu)R15，第(di)(di)(di)十(shi)四電(dian)(dian)(dian)阻(zu)(zu)R14的一(yi)端(duan)與(yu)第(di)(di)(di)一(yi)電(dian)(dian)(dian)容C1的正(zheng)極連(lian)(lian)接(jie)，第(di)(di)(di)十(shi)四電(dian)(dian)(dian)阻(zu)(zu)R14的另一(yi)端(duan)分別與(yu)第(di)(di)(di)二電(dian)(dian)(dian)容C2的正(zheng)極和第(di)(di)(di)十(shi)五(wu)(wu)電(dian)(dian)(dian)阻(zu)(zu)R15的一(yi)端(duan)連(lian)(lian)接(jie)，第(di)(di)(di)十(shi)五(wu)(wu)電(dian)(dian)(dian)阻(zu)(zu)R15的另一(yi)端(duan)與(yu)第(di)(di)(di)二電(dian)(dian)(dian)阻(zu)(zu)R2的一(yi)端(duan)連(lian)(lian)接(jie)。其中(zhong)，第(di)(di)(di)十(shi)四電(dian)(dian)(dian)阻(zu)(zu)R14和第(di)(di)(di)十(shi)五(wu)(wu)電(dian)(dian)(dian)阻(zu)(zu)R15均為限(xian)流電(dian)(dian)(dian)阻(zu)(zu)，第(di)(di)(di)十(shi)四電(dian)(dian)(dian)阻(zu)(zu)R14用于第(di)(di)(di)一(yi)二極管D1所(suo)在的支(zhi)(zhi)路(lu)進(jin)行過流保護，第(di)(di)(di)十(shi)五(wu)(wu)電(dian)(dian)(dian)阻(zu)(zu)R15用于對第(di)(di)(di)二電(dian)(dian)(dian)阻(zu)(zu)R2所(suo)在的支(zhi)(zhi)路(lu)進(jin)行過流保護，以進(jin)一(yi)步(bu)提(ti)高電(dian)(dian)(dian)路(lu)的安全性(xing)和可靠性(xing)。

本實施例中(zhong)，該LED照明燈恒流電(dian)(dian)路(lu)(lu)還包括第(di)十(shi)六(liu)電(dian)(dian)阻R16，第(di)十(shi)六(liu)電(dian)(dian)阻R16的(de)一端與第(di)一運(yun)算放大(da)器(qi)U1A的(de)反相輸入端連接(jie)(jie)，第(di)十(shi)六(liu)電(dian)(dian)阻R16的(de)另一端與第(di)二電(dian)(dian)阻R2的(de)另一端連接(jie)(jie)。第(di)十(shi)六(liu)電(dian)(dian)阻R16為限(xian)流電(dian)(dian)阻，用于對第(di)一運(yun)算放大(da)器(qi)U1A的(de)反相輸入端所在(zai)的(de)支路(lu)(lu)進行過流保護，以(yi)更進一步提高(gao)電(dian)(dian)路(lu)(lu)的(de)安全性(xing)和可靠性(xing)。

本實(shi)施例中，該LED照(zhao)明燈恒流(liu)電(dian)(dian)路(lu)還包括第(di)十七(qi)(qi)(qi)電(dian)(dian)阻(zu)R17和(he)第(di)七(qi)(qi)(qi)電(dian)(dian)容C7，第(di)一運算(suan)放(fang)大(da)(da)(da)器(qi)(qi)(qi)U1A的(de)同向輸(shu)入(ru)端(duan)依次通過第(di)十七(qi)(qi)(qi)電(dian)(dian)阻(zu)R17和(he)第(di)七(qi)(qi)(qi)電(dian)(dian)容C7與(yu)集(ji)成穩壓(ya)(ya)器(qi)(qi)(qi)U2的(de)控制端(duan)連(lian)接。第(di)十七(qi)(qi)(qi)電(dian)(dian)阻(zu)R17為(wei)限(xian)流(liu)電(dian)(dian)阻(zu)，用(yong)于(yu)對第(di)一運算(suan)放(fang)大(da)(da)(da)器(qi)(qi)(qi)U1A的(de)同向輸(shu)入(ru)端(duan)所在的(de)支路(lu)進行(xing)過流(liu)保(bao)護，第(di)七(qi)(qi)(qi)電(dian)(dian)容C7為(wei)耦合電(dian)(dian)容，用(yong)于(yu)防止第(di)一運算(suan)放(fang)大(da)(da)(da)器(qi)(qi)(qi)U1A和(he)集(ji)成穩壓(ya)(ya)器(qi)(qi)(qi)U2之間的(de)干(gan)擾。

本實施(shi)例中，該LED照明燈恒流電(dian)路(lu)還包括第(di)(di)十八電(dian)阻(zu)(zu)R18，第(di)(di)十八電(dian)阻(zu)(zu)R18的一(yi)端接地，第(di)(di)十八電(dian)阻(zu)(zu)R18的另(ling)(ling)一(yi)端與第(di)(di)三(san)電(dian)阻(zu)(zu)R3的另(ling)(ling)一(yi)端連接。第(di)(di)十八電(dian)阻(zu)(zu)R18為限流電(dian)阻(zu)(zu)，用于對第(di)(di)三(san)電(dian)阻(zu)(zu)R3和(he)第(di)(di)一(yi)運算放大器U1A的第(di)(di)四引腳之間的支(zhi)路(lu)進行過流保護。

本實施例中(zhong)，該LED照明燈恒流(liu)電(dian)路還包括第(di)十九(jiu)(jiu)電(dian)阻(zu)(zu)R19，第(di)十九(jiu)(jiu)電(dian)阻(zu)(zu)R19的(de)一(yi)端(duan)與(yu)第(di)三(san)(san)二(er)(er)極(ji)管D3的(de)陰(yin)極(ji)連接，第(di)十九(jiu)(jiu)電(dian)阻(zu)(zu)R19的(de)另一(yi)端(duan)與(yu)第(di)二(er)(er)運算放大器U1B的(de)輸出端(duan)連接。第(di)十九(jiu)(jiu)電(dian)阻(zu)(zu)R19為限流(liu)電(dian)阻(zu)(zu)，用于對第(di)二(er)(er)運算放大器U1B的(de)輸出端(duan)和第(di)三(san)(san)二(er)(er)極(ji)管D3之間(jian)的(de)支(zhi)路進行過流(liu)保護。

總之(zhi)，在本實施例(li)中，由于設有多個(ge)限流電阻，可以(yi)進(jin)行過流保(bao)護(hu)，因此其(qi)具有電路保(bao)護(hu)功能、使(shi)用較為安全。

以上所述(shu)僅為本發明的較佳實施例而已，并不用以限(xian)制(zhi)本發明，凡在(zai)(zai)本發明的精(jing)神和原則之(zhi)內(nei)，所作(zuo)的任何修(xiu)改、等同(tong)替換、改進等，均應包(bao)含在(zai)(zai)本發明的保護范圍之(zhi)內(nei)。